Door-fastener.



No. 646,8l0. -Patented Apr. '3, |900.

w novLE, 1n 000B FASTENER.

(Application tiled Nov."21, 1899.)

(Nu Model.)

FT/G. 5.

UNITED STATES PATENT EFICE.

WILLIAM DoYLE, JR., or New YORK, N. Y.

DOOR-FASTENER.

SFECIFICATION forming part of Letters Patent N o. 646,810, dated April 3, 1900.

Application filed November Z1, 1899. Serial No. 737,733. (No model.)

To all whom t may concern:

Be it known that 1, WILLIAM DOYLE, J r., a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Door-Fasteners, of which l part of this specification, in which like numerals of reference denote corresponding parts in the several views, Figure 1 is an ele-A vation illustrating the locking operation of the device when the door is closed. Fig. 2 is a corresponding View with the door partially open. Fig. 3 is a top or plan view of the structure shown in Fig. 1, partly inV section; and Fig. 4 is a view correspondingto Fig. 3

l and illustrating the position of the parts as shown in Fig.' 2.

Referring to the drawings, 1 designates the door, and 2 the frame, the bolt device 3 being secured upon the member 1, while the keeper device 4 is secured to the member 2.

The improved bolt device 3 comprised in my invention and improvements embodies a bolt proper, 5, having a main arm 6, which is slidably and revolubly mounted, and a supplementary arm 7, which projects at right angles from the main arm 6 and has a projecting end 8 turned at right angles to the portion 7. Said portions 7 and 8 thus form an angular extension of the main bolt-arm 6. The bolt device proper, 5, is preferably of cylindrical contour, as shown, and it may be slidably and revolubly mounted upon and connected with the door 1 in any suitable or desired manner. I prefer, however, to employ the plate 9, as herein illustrated, which may be secured by means of screws, as at 10, and which embodies a semicylindrical outwardly-projecting portion 11, adapted to receive and retain the arm or rod 6. Said plate 9 has an opening, as at 12, at the frontend of the cylindrical portion 11 and intersecting the latter, said cylindrical portion being open at its rear side, and at the rear end of the portion 11 the plate 9 is provided with a slot, as at 13. By means of the construction just described the arm or rod 6, which is provided with a retaining flange or head, as at 14, can be first inserted through the opening 12 and then along at the back of the portion 11 and then turned forwardly to its seat in said portion l11, whereby a convenient relative connection and adjustment of the bolt proper, 5, and its retaining-plate 9 is effected in the ap-V plication of the device to the door l, and af ter the plate 9 is secured to the door the head or iiange 14 will operate to retain the bolt proper, 5, from accidental detachment or disconnection from its plate 9. The end of the portion 8 is preferably turned, as shown at 15', to form a projection which will facilitate the engagement of the angular end portion of the bolt with the keeper, as will be hereinafter set forth.

, The keeper 4 embodies a long arm or body portion 16, having angular ends 17, whereby the arm 16 is retained away from the surface of the frame 2, and a sufficient space intervenes between the inner face of the arm 16 and said surface 2. At its angular portions 17 the keeper 4 is secured to the frame 2 by means of a flange 18 and screws 19 or in any other suitable manner. Said keeperis mounted in a position at right angles to the longitudinal extension of the slidable and revoluble bolt-arm 6, and its arm 16 is of sufficient longtudinal extension to entirely receive the angular arm 7 of the bolt device, as clearly indicated in dotted lines in Fig. 1. The inner face of the longitudinal arm 16 of the keeper is of greater width or diameter than the arm 7 of the bolt device, so that said cylindrical arm 7 will have a iirm bearing against the inner wall or face of the keeper-arm 16 when the device is in the locking position illustrated in Fig. 1.

The operation and advantages of my invention will be readily understood.

The device is exceedingly simple and will conveniently and effectively operate either as a lock-bolt for fastening the door when it IOO is closed or as a check-bolt which will fasten the door when it is partially opened. These alternate operations are accomplished with the same simple device, as follows: When the door is closed, lthe bolt device 5 is slid across the joint between the door and the casing by means of the sliding office of the bolt-arm 6 until its angular end arm 7 is received within the space back of the inner wall or face of the keeper-arm 16, as represented in Figs. 1 and 3, in which position said arm 7 will bear against the keeper-arm 16 and serve to retain the door securely in locked or fastened position. To fasten the door in partially-opened position, it is only necessary to slide back the bolt propel', 5, until the end portion 8 registers with the rear wall or face of the keeper-arm 16, when the door can be opened, and by reason of the revoluble operation of the bolt-arm 6 the saine will turn and the end portion 8 of the bolt will slide upwardly upon and in engagement with the keeper-arm 16, this operalion being indicated in Figs. 2 and 4. During this movement of the bolt, as just described, its end portion 8 will remain in connection with the keeperarm 16 and will maintain such engagement at all times while the door is partially opened, this engagement being further insured by the angular end projection 15.

It will be understood that myimproved bolt device is adapted for convenient and effective application not only to doors, but to gates and in all other positions and arrangements in which a swinging or hinged member is adapted to be fastened or locked when either' in closed or partially-opened position. s

Having fully described my invention, I claim as new and desire to secure by Letters Patentl. In a bolt or fastening device of the class described, a longitudinally-extended keeper, and a slidable and revoluble bolt having an end engaging said keeper with a locking contact at one position of said bolt and with a sliding contact at another position of said bolt.

2. In a bolt or fastening device of the class described, a longitudinally-extended keeper, and a slidable and revoluble bolt embodying a main arm carrying a supplementary arm projecting at an angle thereto and provided with an angular end extension, the relative construction and arrangement being such that the supplementary arm of the bolt engages the keeper in a longitudinal plane at one de`4 gree of the slidable adjustment of the bolt to form a Iixed locking contact, while the an-f gular end extension engages said keeper at another degree of the slidable adjustment of the bolt to form a sliding contact.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribing witnesses, this 18th day of November, 1899.

VILLIAM DOYLE, JR.

Vitnesses:

F. A. STEWART, V. M. VosLEn. 

